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Cichlid fish discovered to have infrared vision -
October 29, 2012
"Biologists from the University of Bonn have discovered that the cichlid fish Pelvicachromis taeniatus can see in the near infrared range; this was thought to be unlikely until now. Seeing in the infrared range is apparently helping fish to hunt in shallow African rivers." -
"In a dark room a prey selection experiment was set up illuminated by infrared lamps. In front of the water basin containing the fish freshwater shrimp were offered in two separate chambers. One of the chambers with the prey was covered with a filter blocking infrared wavelengths. The other chamber was covered with a filter that would let only infrared light pass. 'Consequently, the fish were only able to perceive the freshwater shrimp in one chamber in the near infrared range'" -
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